[   41.461600] br0: port 1(dummy0) entered blocking state
[   41.461654] br0: port 1(dummy0) entered disabled state
[   41.461686] dummy0: entered allmulticast mode
[   41.461741] dummy0: entered promiscuous mode
[   41.465660] br0: port 1(dummy0) entered blocking state
[   41.465732] br0: port 1(dummy0) entered forwarding state
[   41.738384] dummy0: left allmulticast mode
[   41.738422] dummy0: left promiscuous mode
[   41.738455] br0: port 1(dummy0) entered disabled state